Method for improving the loading capacity of tobacco

A - Human Necessities – 24 – B

Patent

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A24B 15/18 (2006.01) A24B 3/18 (2006.01)

Patent

CA 2489524

The invention relates to a method for improving the loading capacity of tobacco, such as cut tobacco leaves or tobacco ribs and tobacco additives. According to the inventive method, the tobacco material containing between 10 and 30 % of initial humidity is treated with a treatment gas consisting of nitrogen and/or argon, at pressures of between 400 and 1,000 bar; the tobacco is then continuously decompressed; and the discharged tobacco material is then thermally post-treated. The apparent density of the packed tobacco in the autoclaves is higher than 0.2 kg/dm3.

L'invention concerne un procédé permettant d'améliorer la capacité de charge du tabac, sous forme de feuilles ou côtes de tabac coupées et d'additifs au tabac. Ce procédé consiste à traiter le tabac présentant 10 à 30 % d'humidité initiale à l'aide d'un gaz de traitement composé d'azote et/ou d'argon à une pression comprise entre 400 et 1 000 bars puis à soumettre le tabac déchargé à une décompression continue et à un post-traitement thermique. La densité de charge du tabac dans l'autoclave est ainsi supérieure à 0,2 kg/dm?3¿.

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